The earliest version of the lute appeared in ancient Mesopotamia.
The naval battle fought by the British Navy against the German Navy was the largest sea battle in World War I.
Solomon's temple became one of the most important symbols of Jewish architecture.
Smoking severely damages the respiratory system, it may cause COPD or lung cancer.
Marine mammals, the largest known animals to have ever existed.
The church consecrated to Saint Basil was commissioned by Ivan the Terrible.
A type of rotary engine of high efficiency
This animation demonstrates the anatomy of tulips, daffodils and snowdrops.
This animation demonstrates how a refrigerator works.
An ancient Greek myth about the tragedy of father and son who wanted to flee the island of Crete.
A long pipe in the centre of the tower penetrates the ocean bed until it reaches the layer that contains oil.
The withdrawal reflex is a spinal reflex that ensures moving away from potentially damaging stimuli.
The building complex was one of the most important Benedictine abbeys for centuries.
The Ottoman army included janissaries (paid warriors) and sipahis (vassal knights).
Public schools in villages played an important role in education.
A type of herbivorous dinosaur easily recognisable by its large frill and three horns which lived in the Cretaceous period.
The French monarch got his epithet because of his opulent and extravagant lifestyle.
This animation demonstrates how mobile phones work.
Metal atoms form a regular lattice structure.
Cinemas were built in large numbers in big cities of the US in the 1910s.